添加关闭窗口快捷键

src/xcb/window.c

@@ -315,3 +315,11 @@ void place_window_below_sibling(xcb_window_t window, xcb_window_t sibling) {
   };
   xcb_aux_configure_window(conn, window, mask, &params);
 }
+
+void kill_window(xcb_window_t window) {
+  xcb_grab_server(conn);
+  xcb_set_close_down_mode(conn, XCB_CLOSE_DOWN_DESTROY_ALL);
+  xcb_kill_client(conn, window);
+  xcb_flush(conn);
+  xcb_ungrab_server(conn);
+}